This error indicates a critical failure within the .NET Runtime, often resulting in the abrupt termination of an application. It typically stems from runtime corruption, system conflicts, or internal exceptions. In this post, we are going to see what you can do if a process was terminated due to an internal error in the .NET Runtime, Exit code 80131506, Event ID 1023.
Description: The process was terminated due to an internal error in the .NET Runtime at IP with exit code 80131506.
Event ID: 1023
Why does .NET keep crashing with Internal Runtime Errors?
.NET crashes often happen due to version conflicts between SDK and runtime components or corrupted dependencies. To troubleshoot, first check your versions by running `dotnet –info` and ensure they are consistent. Additionally, consider reinstalling the Visual C++ redistributables, as .NET depends on these native components. Aligning these elements usually resolves the frequent crashes.
Read: Troubleshoot .NET Framework Installation Issues on Windows 11
Fix The process was terminated due to an internal error in the .NET Runtime
Exit code 0x80131506 happens when the .NET Runtime runs into serious internal problems. These problems can occur due to issues with managing memory, corrupted just-in-time (JIT) compilation, or problems loading assemblies. Incompatible native libraries, heap corruption, or damage to a runtime component may trigger it. When this occurs, the normal execution stops, and the process must end immediately.
If the Event Viewer log says The process was terminated due to an internal error in the .NET Runtime at IP with exit code 80131506, follow the solutions mentioned below.
- Clear .NET Native image cache and temporary files
- Repair .NET Runtime Installation
- Check Memory Environment Variable
- Update or reinstall C++ Redistributables
Let us talk about them in detail.
1] Clear .NET Native image cache and temporary files
In this solution, we will eliminate corrupted cached native images and temporary files that can cause execution engine failures. The native image cache (NGEN) stores pre-compiled .NET assemblies, and corruption in these files directly leads to runtime execution errors. Clearing these caches forces the runtime to regenerate clean, valid images and dependencies, thereby resolving the internal consistency issues that cause the 80131506 exit code.
To do so, search for Developer Command Prompt in the Search Menu and then open it as an administrator.
Then, run the command – ngen update
The command is going to take some time to complete. Once it completes, you will get the following message.
All compilation targets are up to date.
Navigate to %TEMP% and delete all contents.
Then, run the following command in the Developer Command Prompt.
dotnet nuget locals all --clear
Finally, check if the issue is resolved.
2] Repair .NET Runtime Installation
We will repair corrupted runtime files, registry entries, and configuration settings that cause the execution engine to fail. The repair tool systematically replaces damaged components and fixes installation inconsistencies. To do so, run the following command in the Developer Command Prompt.
dotnet --info
Look for the Runtime version. or Host – Version to identify the version of .NET Runtime installed.
Now, go to dotnet.microsoft.com and download the exact version shown in dotnet –info. Choose the correct architecture (x64/x86) matching your application.
You then have to run the downloaded installer as Administrator, select the Repair option if available. If no repair option is available, uninstall the current version first. Reinstall fresh using the same installer.
Additionally, install and run the Microsoft .NET Framework Repair Tool from microsoft.com.
The version mismatch between your SDK (8.0.416) and Runtimes (8.0.22) can cause execution engine failures (check the attached screenshot). A repair ensures all components are synchronized and replaces any corrupted files causing the 80131506 internal error.
3] Change Memory Environment Variable
Memory corruption and garbage collection issues can lead to execution engine failures in the .NET Runtime. Environment variables can enable heap verification for detecting memory integrity problems, disable aggressive GC modes that may disrupt normal execution, and generate detailed logs to identify memory management failures.
Open Developer Command Prompt and then run the following commands.
set COMPlus_HeapVerify=1 set COMPlus_GCStress=0 set COMPlus_LogEnable=1
Now, you need to add each variable as your system’s Environment Variable.
- Variable name: COMPlus_HeapVerify
- Variable value: 1
Repeat for COMPlus_GCStress=0 and COMPlus_LogEnable=1.
Finally, check if the issue is resolved.
4] Update or reinstall C++ Redistributables
The .NET Runtime depends on Visual C++ Redistributables for core native operations and memory management functions. Corrupted or incompatible C++ runtime files can cause memory access violations and heap corruption that manifest as .NET internal errors, making this a critical dependency repair. You need to go ahead and update or reinstall Microsoft Visual C++ Redistributables. Finally, check if the issue is resolved.
Hopefully, with the help of these solutions, your issue will be resolved.
Read: Fix .NET Runtime Event 1026, Exception code c00000fd
How to Fix .NET Runtime Internal Error 80131506 Quickly?
This error is often resolved by repairing your .NET installation and clearing runtime caches. Download the exact .NET runtime version from Microsoft’s official site and run the repair option. Then execute dotnet nuget locals all --clear in Developer Command Prompt to remove corrupted temporary files, which typically resolves the execution engine failure.
Also Read: Microsoft .NET Framework : Beginners Guide & Download.
